S+S Regeltechnik AERASGARD RFTM-PS Serie Notice D'instruction page 15

G
Installation and Commissioning
SUPPLY VOLTAGE :
For operating voltage reverse polarity protection, a one-way rectifier or
reverse polarity protection diode is integrated in this device variant.
This internal one-way rectifier on AC supply voltage.
The output signal is to be tapped by a measuring instrument. The output
signal is measured her against zero potential (O V) of the input voltage!
When this device is operated on DC supply voltage, the operating
voltage input UB+ is to be used for 15...36 V DC supply and UB – or GND
for ground wire!
When several devices are supplied by one 24 V AC voltage supply, it is
to be ensured that all "positive" operating voltage input terminals (+) of
the field devices are connected with each other and all "negative" oper-
ating voltage input terminals (–) (= reference potential) are connected
together (in-phase connection of field devices). All outputs of field
devices must be referenced to the same potential!
In case of reversed polarity at one field device, a supply voltage short-
circuit would be caused by that device. The consequential short-circuit
current flowing through this field device may cause damage to it.
Therefore, pay attention to correct wiring!
Humidity table
MR: 0...100 % r. H.
% U I
A A
r.H. in V in mA
0 0 4.0
5 0.5 4.8
10 1.0 5.6
15 1.5 6.4
20 2.0 7.2
25 2.5 8.0
30 3.0 8.8
35 3.5 9.6
40 4.0 10.4
45 4.5 11.2
Continued at the right ...
% U I
A A
r.H. in V in mA
50 5.0 12.0
55 5.5 12.8
60 6.0 13.6
65 6.5 14.4
70 7.0 15.2
75 7.5 16.0
80 8.0 16.8
85 8.5 17.6
90 9.0 18.4
95 9.5 19.2
100 10.0 20.0
Connecting scheme
Power supply
AC 24V~ 0V
DC 15-36V = GND
Connecting scheme
Power supply
AC 24V~ 0V
DC 15-36V = GND
Temperature table
MR: 0...+50 °C
°C U
A
in V in mA
0 0
5 1.0
10 2.0
15 3.0
20 4.0 10.4
25 5.0 12.0
30 6.0 13.6
35 7.0 15.2
40 8.0 16.8
45 9.0 18.4
50 10.0 20.0
15
Individual operation
Circuitry
Parallel operation
Circuitry Circuitry
I
A
4.0
5.6
7.2
8.8